What lights take 17500's??

[lrp]

I just found a couple of these and can't find any lights that take them, I've been away from the forum for some time now....anyway, any help would be appreciated, need to put these batteries to work, thanks!!

 

[Benson]

I just found a couple of these and can't find any lights that take them, I've been away from the forum for some time now....anyway, any help would be appreciated, need to put these batteries to work, thanks!!

The main idea behind them, I believe, is to use two of them in 3xCR123 lights, where 3x16340 would . They also work in some combo AAA/AA/10440/14500/CR123 lights -- I have one of these from DX, and a 17500 fits fine. Also 3xAAA/18650 lights (being about the length of a 3xAAA holder; I have one of these, too), or even to mod a 3xAAA light that's too short for 18650s.

Edit: Before someone asks why you would use a 17500 in an 18650 light... It's about carrying spare cells that work for more than one light. Of course the 18650 always starts loaded with an 18650, but carrying 17500s or even 14500s for it and another light or two means more flexibility if I do need to dig into my spares. And I don't EDC that light, so being able to grab it if I feel like it and know it'll work with my EDC spares (including 2 14500s and a 17500) is good.

 

[Kestrel]

Short answer, if you're to be using SureFires: 2x17500 is a nearly perfect replacement for 3xCR123 in the 9P/G3/C3 with a Malkoff LED drop-in (or pretty much any standard drop-in, for that matter). This configuration packs quite a bit of energy, ~60% more than 3xRCR123 (which would have too high a voltage anyhow).

3xCR123: 3.0v -> 2.5 volts under load x 3 cells = 7.5 volts :thumbsup:
2x17500: 4.2v -> 3.7 volts under load x 2 cells = 7.4 volts :thumbsup:
3xRCR123: 4.2v -> 3.7 volts under load x 3 cells = 11.1 volts

 

[DHart]

To add to the above.

Some custom bodies are available (Fivemega, for example) in a length sized to house the 17500 or 18500 cell (basically a 50mm long cell), to give better capacity and more hand-holding size than a 3P body (34mm cell) yet be more compact than the 6P length bodies. I have a Fivemega E-series body that takes a 17500 cell which makes for a nice compact size yet, using a 17500 cell, with much better capacity than an E1 size body allows.

 

[Kestrel]

Some custom bodies are available (Fivemega, for example) in a length sized to house the 17500 or 18500 cell (basically a 50mm long cell), to give better capacity and more hand-holding size than a 3P body (34mm cell) yet be more compact than the 6P length bodies.

Those FiveMega single-cell bodies (for sizes other than the standard 34 mm cell) sure look sweet, essentially a custom-made product for a mass-production price.

 

[linterno]

I have a Romisen RC-W4 working with 17500 (use a PVC pipe as an adapter so the battery fits well inside the flashlight).